Merge pull request #2 from Mte90/master

Google font
Merge pull request #3 from PTKDev/master

merge
[add] login.class.php
[add] Docs about Database

This Docs is about "how database works".
At the moment it's a simple UML (I need to complete ASAP) don't take it
as default schema even because it's not integrated in the config.php
file.
Easy link for the user for IRC channel

Just let them to connect to us easily :)
[fix] poll (alpha)
[fix] merge
Merge pull request #4 from ludo237/master

Pull Docs request to the master
Merge pull request #5 from PTKDev/master

merge
Merge pull request #6 from whilex/master

merge
[fix] stupid bug header
Merge pull request #6 from PTKDev/master

merge
[fix] logout bug and session bug
Merge pull request #7 from PTKDev/master

merge security bug
Merge pull request #2 from whilex/master

sync merge